论文部分内容阅读
目的通过对上海市奉贤区2009—2011年5家蓄电池生产企业铅浓度的监测结果分析,了解电池行业生产环境的职业危害情况,为改善作业环境,保护作业人员健康提供科学依据。方法采用定点多次(2次)短时间采样法估算时间加权平均(TWA)浓度,和个体采样实测(TWA)浓度。结果铅烟平均浓度为0.036 mg/m3,最高浓度为0.260 mg/m3,合格率70.4%;铅尘平均浓度为0.058 mg/m3,最高浓度为0.270 mg/m3,合格率为67.0%。铅烟与铅尘合格率比较,差异无统计学意义(χ2=0.455,P>0.05);总的定点与个体合格率比较,差异无统计学意义(χ2=1.787,P>0.05)。结论对铅烟与铅尘作业工人的岗位不同和生产环境不同,应采取不同防护措施,改善作业环境,减少铅中毒发生。
Objective To understand the occupational hazards of the production environment in the battery industry by analyzing the monitoring results of lead concentration in five battery manufacturers in Fengxian District of Shanghai from 2009 to 2011 and provide scientific basis for improving the working environment and protecting the health of workers. Methods The time-weighted average (TWA) concentration and individual sample concentration (TWA) were estimated by fixed-point multiple (twice) short-time sampling. Results The average lead concentration was 0.036 mg / m3, the highest concentration was 0.260 mg / m3 and the pass rate was 70.4%. The average lead concentration was 0.058 mg / m3 and the highest concentration was 0.270 mg / m3. The pass rate was 67.0%. There was no significant difference between the passing rate of lead and lead dust (χ2 = 0.455, P> 0.05). There was no significant difference between the total fixed point and individual passing rate (χ2 = 1.787, P> 0.05). Conclusion Different lead workers and lead dust workers have different positions and different production environments. Different protective measures should be taken to improve working environment and reduce lead poisoning.